Yu Xiaogang and Liu Erlong Still Took That Step

Meanwhile, in Ye Chen's Sea of Spirit, Bibi Dong had also finished condensing her Soul Core.

For Limit Douluo like them, condensing a Soul Core was not particularly difficult.

But after Bibi Dong completed her Soul Core, Ye Chen instead fell into hesitation.

"What's wrong, little one? Your teacher condensed a Soul Core, and you're not happy about it?"

Bibi Dong frowned slightly, her violet eyes fixed on Ye Chen.

"Well..." Ye Chen hesitated for a moment before speaking.

"There was another reason why Limit Douluo of this era were so powerful: they possessed Double Soul Cores."

"Oh? Double Soul Cores?" Ye Chen's words once again piqued Bibi Dong's interest.

Under Bibi Dong's gaze, Ye Chen had no choice but to continue.

"After obtaining the first Soul Core, there are only two ways to condense another one."

"In-Phase Resonance, or Yin-Yang Complementarity."

In the livestream chat, everyone began mocking Yu Xiaogang again.

[Long Yeyue: Theory Master, do you know the difference between the In-Phase Resonance Double Soul Core and the Yin-Yang Complementary Double Soul Core?]

Yu Xiaogang: "..."

Yu Xiaogang directly chose to lurk. Not responding was the best response!

[Yun Ming: He doesn't even know what a Soul Core is. How could he possibly know the difference between the two methods?]

[Xu Xiaoyan: Hahaha, the Theory Master doesn't even dare speak now.]

[Ning Rongrong: Hahaha.]

Elsewhere, after hearing that there were two completely different methods, Bibi Dong asked,

"What is the difference in how the Double Soul Cores function with these two methods?"

"When condensing the second Soul Core, it is inevitable that it will encroach upon the first Soul Core's domain. One center becomes two, and the first Soul Core itself will fiercely resist."

"Because acquiring a second Soul Core is equivalent to disrupting the rules of the first Soul Core, the difficulty is immense," Ye Chen answered.

Bibi Dong nodded. She had already sensed this herself just now, and Ye Chen continued.

"So-called In-Phase Resonance means finding the operating pattern and frequency of the first Soul Core while condensing the second Soul Core."

"And making the second Soul Core follow the operating pattern of the first Soul Core, thereby minimizing the interference from the first Soul Core."

"When the operation and compression of the second Soul Core can approach that of the first Soul Core, suddenly accelerate and turn one center into two.

"It is still Soul Power compression and rotation, but the circle's center changes. It becomes a circle whose diameter is the line connecting two points. The circle is much larger than before, so the Soul Power it can condense and compress is naturally far greater as well."

"What about Yin-Yang Complementarity?" Bibi Dong continued asking.

Once, she had believed Yu Xiaogang to be the renowned Martial Soul Theory Master of Douluo Continent.

Yet after arriving ten thousand years later, she discovered that Yu Xiaogang's so-called theories were completely useless here.

Yu Xiaogang did not even know as much as her own disciple. Thinking of this, Bibi Dong could not help glancing at Ye Chen a few more times, and a strange feeling arose in her heart.

At this moment, Ye Chen was still organizing his explanation of the Yin-Yang Complementary Double Soul Core and did not notice Bibi Dong studying him.

But Ice Empress and Snow Empress, standing nearby, saw it!

"Snow Empress, look at that woman. The way she looks at Ye Chen seems downright affectionate!" Ice Empress whispered.

"Don't interrupt," Snow Empress rebuked her.

At this moment, Snow Empress was also observing Bibi Dong.

She had never expected someone as powerful as Bibi Dong to not even possess a Soul Core!

This shocked her immensely! Since when had such a powerful human appeared on the continent?

Meanwhile, Ye Chen had organized his explanation of the Yin-Yang Complementary Double Soul Core and said,

"So-called Yin-Yang Complementarity means that when establishing the second Soul Core, from the very beginning, it must take a path completely different from that of the first Soul Core.

"It is equivalent to condensing an entirely new Soul Core from scratch, one completely unrelated to the first Soul Core."

"But at the same time, it must withstand all interference from the first Soul Core."

"Simply put, if your first Soul Core rotates its Soul Power to the left when it forms, Teacher, then when establishing your second Soul Core, you must make it rotate to the right. Everything must be completely opposite to the first Soul Core."

After listening thoughtfully, Bibi Dong summarized,

"In other words, In-Phase Resonance is led by the first Soul Core, while the second Soul Core supports the first Soul Core."

"And Yin-Yang Complementarity means both Soul Cores are dominant. The two Soul Cores are equal in scale and constantly collide with each other to temper the Soul Power. Its Soul Power purity, explosive force, and recovery speed all far surpass those of an In-Phase Resonance Double Soul Core."

Ye Chen nodded. He had not expected Bibi Dong's comprehension to be so high! She had understood In-Phase Resonance and Yin-Yang Complementarity so quickly.

"Then, Teacher, what do you intend to..." Before Ye Chen could finish, Bibi Dong interrupted him.

"I intend to take the Yin-Yang Complementary Double Soul Core path."

The moment Bibi Dong said this, not only Ye Chen, but Snow Empress and Ice Empress also stared at her in shock.

Even the many Titled Douluo and Limit Douluo watching through the Sky Screen livestream were stunned.

Especially the Limit Douluo of the Dragon King era. They all knew perfectly well how dangerous the Yin-Yang Complementary Double Soul Core was. They had not expected this Pope from twenty thousand years ago to be so bold.

Ye Chen hurriedly tried to dissuade her.

"Teacher, you don't need to take such a risk. In this era, whether it is Dragon God Douluo Mu En, Dragon Emperor Douluo Long Xiaoyao, or Death God Douluo Ye Xishui, all of them have In-Phase Resonance Double Soul Cores."

"Oh? Has no one achieved a Yin-Yang Complementary Double Soul Core?" Bibi Dong asked.

"Yes!" At that moment, Snow Empress suddenly spoke.

"The leader of the Ten Great Ferocious Beasts, Beast God Di Tian, possesses a Yin-Yang Complementary Double Soul Core."

"Di Tian's physical body is uniquely endowed by nature and can naturally withstand the damage caused by the core collision. That is why his combat strength can steadily overpower all human Limit Douluo."

Hearing this, Bibi Dong smiled disdainfully. "If Di Tian can do it, then so can I."

Ye Chen wanted to persuade her further. After all, the difficulty of a Yin-Yang Complementary Double Soul Core was far from ordinary.

But Bibi Dong shook her head.

"All right, little one. Before I am fully prepared, I will not attempt to condense a Double Soul Core for now. Let's talk about Dragon God Douluo Mu En first."

"Light Sacred Dragon Martial Soul—I have never heard of this Martial Soul. Is it powerful?"

Hearing this, Ye Chen froze for a moment, took a deep breath, and slowly spoke.

Bibi Dong did not understand why Ye Chen had reacted that way, but his next words immediately made her understand.

"Mu En is a descendant of Yu Xiaogang and Liu Erlong from ten thousand years ago."

"And the Light Sacred Dragon Martial Soul originated from Yu Xiaogang's Martial Soul, Luo Sanpao. When Yu Xiaogang's Martial Soul awakened, it mutated, and the direction of that mutation was the Light Sacred Dragon."

During this period, Ye Chen had searched through the entire library and discovered that the origin of the Light Sacred Dragon Martial Soul lay with Yu Xiaogang and Liu Erlong.

Ye Chen had not expected it either. Gangzi had clearly told Liu Erlong they would only be a spiritual couple, yet in the end, he still broke that vow.